Safari File Edit View History Bookmarks Window Help Q Mon Aug 8 4:24 PM utsa.blackboard.com X + 88 M CMN -... G https://... c Meloni... https:/.. MAX/C. Aaron... Dashb.. Aaron... Aaron.. # Group... Content Question Completion Status: X This question is worth a total of 50 points. You must solve it either electronically or using a pen and paper (take a picture of your work!). Then you must submit a single file showing your work and answers to each question. The file can be in such formats as PDF, Word, Excel, PowerPoint, JPEG etc. The Farmer's American Bank of Leesburg is planning to install a new computerized accounts system. Bank management has determined the activities required to complete the project, the precedence relationships of the activities, and activity time estimates, 18 as shown in the following table: Time Estimates (weeks) Activity Activity Activity Description Predecessor a b C 88 A Position recruiting 5 8 17 B System development --- 3 12 15 C System training A 4 7 10 D Equipment training A 5 8 23 E Manual system test B, C 1 1 1 F Preliminary system changeover B. C 4 13 G Computer-personnel interface D E 3 6 9 H Equipment modification D, E 2.5 Equipment testing H 1 1 C System debugging and installation F, G 2 2 2 K Equipment changeover G, I 5 8 11 7,048 AUG 247 8 "tv 4 16409 OSafari File Edit View History Bookmarks Window Help Q Mon Aug 8 4:24 PM utsa.blackboard.com X + 88 M CMN -... G https://.. c Meloni.. https:/.. MAX/C. Aaron... Dashb.. Aaron... Aaron.. Group... Content Question Completion Status: X A Position recruiting --- 5 8 17 B System development --- 3 12 15 Screen Shot 2022-0...24.42 P C System training A 4 7 10 D Equipment training A 5 8 23 18 E Manual system test B, C 1 1 F Preliminary system changeover B, C 4 13 G Computer-personnel interface D, E 6 9 H Equipment modification D, E 2.5 7 - Equipment testing H 1 1 J System debugging and installation F, G 2 2 2 K Equipment changeover G, I 5 8 11 a. Using the PERT approach, use the three estimates of duration to calculate a mean duration and standard deviation for all activities. (4 pts) b. Construct/draw a network diagram for this problem using the mean durations, calculate LS(Foll.), ES(Prec.), and the total float for each task, and hence identify the critical path. What is the standard deviation of the critical path? (30 pts) c. What is the 94% confidence interval for the length of the critical path? (4 pts) d. What is the probability of completing the project within 40 weeks? (4 pts) e. Answer the project manager's question: "I want to tell the client a project length which I am 89.44% sure that we can meet - what figure should I give them?" (4 pts) f. What is the probability of completing the project between 35 and 39 weeks? (4 pts) 7,048 AUG 16409 8 4 O